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. 2020 Aug 3;9(8):696. doi: 10.3390/antiox9080696

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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N₂ adsorption-desorption isotherms of pristine and functionalized MCM-41 carriers (A) and their pore size distribution curves calculated with NLDFT (B): MCM-COOH (a); MCM-CN (b); MCM-SO₃H (c); MCM-SH (d); MCM-41E (e)